Renovating attachment for slashers



June 12, 1923.

L. L. EVANS RENOVATING ATTACHMENT FOR SLASHERS 7 2 Sheets-Sheet 1 June 12, 1923.

L. L. EVANS TING ATTACHMENT FOR SLASHERS RENOVA Filed Dec. 10 1921 )3 LLZv-ans Patented June 12, 1923.

PATENT OFFICE.-

UNITED, STATES LEWIS L. EVANS, OF LANCASTER, SOUTH CAROLINA, ASSIGNOR OF ONE-HALF OLEN W. CONNOR, OF CONCORD, NORTH CAROLINA.

RENOVATING ATTACHMENT FOR SLASHERS.

Application filed December 10, 1921.

To all whom it may com-em:

Be it known that I, LEWIS L. EVANS, a citizen of the United States, residing at Lancaster, in the county of Lancaster and State of South Carolina, have invented certain new and useful Improvements ill Renovating Attachments for Slashers, of

which-the following is a. specification, reference being had'to the accompanying drawings.

This invention relates to means for preparing Warp, and particularly to means for spraying oil upon cotton yarn passing through a slasher and after the yarn has been sized and before the yarn passes to the measuring roll and the beam.

The general object of this invention is to provide means for applying oil in a very finely divided state to cotton yarn while passing through a slasher and at the same time submitting the yarn to the action of brushes whereby to clean and polish the yarn and lay the fiber to make the threads run separately and thus so prepare the yarn 5 that it may be woven more easily, cause the tie-in machines and the draw-in machines to work better, to cause less lint on the warp and cause less waste lint to be produced in the weaving department.

A further object is to provide means whereby oil in the form of a very fine mist-like spray may be projected by compressed air agalnst the yarn, and means whereby the yarn may then be subjected to the action 5 of brushes acting to lay the fiber and separate the threads.

Other objects have to do with the arrangement and construction of parts whereby the mechanism is adapted to be used with the ordinary slasher as will appear hereafter. My invention is illustrated in the accompanying drawings, wherein Figure 1 is a side elevation of a slasher .with my attachment applied thereto;

Figure 2 is a sectional detail view showing the rotary brushes and one of the sprayers;

Figure 3 is a diagrammatic view of my attachment and showing in section the oil heater;

Figure 4 is a fragmentary sectional view of one of the oil plpes and one of the air pipes which constitute the sprayer.

In the drawings, I have shown in Figure ing the usual horizontal creels B, and

Serial No. 521,474.

1 a side elevation of a slasher with my invention applied thereto, and referring to this figure, A designates the frame suploil'tt 1e frame of the size box having the usual immersion rolls and squeeze rolls D. E and F designate the usual steam heated dryin drums over which the yarn passes, and the frame supporting the measuring roll, the split rods and the beam H. All of these mechanisms are of the usual construction and driven in the usual manner, the mechanism being controlled by means of the rod I. In the carrying outof my invention, I dispose below the drum E and in the path of movement of the yarn X a pair ofrapidly revolving brushes 10, which brushes are disposed so close to each other that the bristles of one brush pass slightly through the bristles of the other brush, and a lower brush 11, through the bristles of which the yarn X passes. All of these brushes revolve in the same direction as the yarn is moving and at agreater speed than the yarn. These brushes may be driven in any suitable manner, but I have illustrated the shafts of the brushes 10 as being provided with pulleys 12- and 13, over which a belt 14 passes, the pulley 13 being connected to the shaft of brush 11 by means of a belt 15. Any other suitable means, however, may be used for driving these brushes, it being noted that the brushes revolve in the same direction that the yarn is moving. The pulley 12 is connected by adriving belt 16 to a driving pulley 17 disposed adjacent to a loose pulley 18, the belt 16 being shiftable from the fast to the loose pulley. These pulleys are mounted upon the shaft 19 which connect to any suitable source of power. Disposed about three inches in advance of the brushes 10 and 11 are a series of oil sprayers whereby a mist composed of oil and compressed air may be sprayed against the yarn. This mechanism is as follows: Disposed in any desired position in the mill is an oil tank 20 which is surrounded by a hot water jacket 21 and is provided with the oil gauge 22 exterior to the jacket'21. The hot' water jacket 21 is heated by steam entering through the steam pipe 23 provided with a valve 24, this steam pipe 23 being connected to a main steam pipe 25 whereby steam is supplied .to the drums E and F. There is a drain pipe 26 which extends from the lower end of the hot water tank 21 and provided with the drain valve 27. An overflow pipe .28 extends from the upper portion of the hot water tank 21 to the drain pipe 26. From the oil tank extends an oil pipe 30 which also extends parallel to the brushes 10 and 11, and extending parallel to this transverse portion 31 of the oil pipe is a second oil pipe 32 connected at one end to the oil pipe 31 by means of a branch 33 provided with the valve 34. The oil pipe 31 is provided with a quick acting cut-off valve35 and with a gate valve 36 whereby the flow of oil to the sprayers may be regulated. There are three branch pipes 33 which connect the pipes 32 and 31, each of these branch pipes being provided with a regulating valve 34. a

From the pipe 32 extends a plurality of vertical oil pipes 37, as illustrated in Figure 4, which oil pipes have an internal diameter of approximately 4". Each of these oil pipes extends down into the relatively large oil supply pipe 32, as illustrated in Figure 4; The lower end of each pipe 37 is formed with perforations 38. Disposed in conjunction with each oil pipe 37 is an air nozzle 39 connected by a pipe 39 to the main air supply pipe 40 which is connected to an air tank 41 operatively connected to an air compressor 42, the pipe connecting the air compressor to the air'tank having a valve 43. The air pipe 40 is provided with a quick opening cut-ofi' valve 44 and with a reducing valve 45 of any suitable character whereby the pressure of air in the pipes 39 may be reduced and controlled. The pipe 40 also has an air gauge or pressure indicator 46. The compressor is driven by means of a belt 47 from a pulley or band wheel 48 on the main shaft 19, this belt 47 being shiftable from the driving pulley 48 to the loose pulley 49. The end of the oil pipe 32 is provided with a drainage cock 50 having a valve.

All slashers are provided with a longitudinally extending rod having handles at intervals, which rod is operatively connected to the driving pulley of the slasher in order to shut off power when beams are being changed or under other circumstances. Such a rod is indicated diagrammatically in Fig- 'ure 3 and is designated 1. The fast and msaavs stopped and the air compressor is stopped,

and when the machine is started up again the brushes are caused to revolve and the air compressor is caused to operate. The valves 35, 44 and 50 are also designed to be connected in an operative manner to this rod, as by levers, so that when the rod T is shifted to stop the machine, the valves 35 and 44 will be closed and the valve 50 will be slightly opened, and that when the machine is started up again the valves 35 and 44 will be opened and the valve 50 closed. The object of this is to prevent the passage of oil and compressed air to the oil pipes and air pipes when the machine is stopped and at the same time drain the relatively cool oil from the oil pipes and, of course, when the machine is started again it. is necessary to close this valve 50 in order to prevent drainage of oil. I do not wish to be limited to any such mechanism for operating these valves, but it will be understood that any suitable mechanism may be used connecting them to the controlling rod I which will accomplish the purpose intended and that the illustration which I have given is purely diagrammatic.

The operation of the mechanism will be obvious from what has gone before. As the yarn passes from the second drying drum F to the guide roller L and then upward over the upper guide roller M and so to the measuring roll or to the usual split rods on the frame G, it passes in front of the air nozzles 39 and is subjected to the action of the thin mist of oil and air which is projected from these Sprayers. The yarn then immediately passes through the brush 11 and then through the pair of brushes 10. The bristles of these brushes project beyond the yarn and make about 1500 R. P. M. traveling in the same direction as the yarn but at a greater speed than the yarn. The first brush 11 acts to more fully separate the strands of yarn from each other and remove surplus oil, while the brushes 10 further separate the yarn, clean and polish it, take out the kinks and noils and remove the scales of hard size, and indeed remove any foreign matter which is attached thereto or is carried along thereby. These brushes are approximately three inches in diameter.

It will be seen that the oil is sprayed upon the exterior surface of the yarn while the yarn is running and that the brushes 10 and 11 act to lay the fiber of the yarn and polish it, while at the same time separating the strands or threads. This oiling and the laying of the fiber andthe polish given to the yarn makes the yarn much better than it otherwise would be and thus secures the better operation of the tie in mechanism and the draw-in mechanism because there is less lint on the warp. This makes the yarn operate reed and gives the cloth a better face. Furthermore, there is less waste lint in the weaving department.

terior of the yarn is oiled or lubricated and this occurs after the passage of the yarn over the drying drums. The brushes act to rid the yarn of surplus oil and, as before remarked, to lay the fibers and separate the strands of yarn from each other, which is an effect not secured by placing tallow or other lubricating or oleaginous material within the sizing bath. While I have heretofore alluded to the use of oil as a material to be applied to the yarn, I have used this term in a generic sense to include linseed 011, any composition for the purpose, or meltedor very liquid tallow or any oleaginous or lubricating liquid adapted to be applied to the yarn for the purpose stated.

It is to be particularly noted that Oll or other lubricant, such as tallow, for instance, is kept at the boiling point in the tank 20 and is sprayed upon the yarn while the tallow is boiling hot. The air coming from the compressor is also warm and inasmuch as the tallow is in a highly heated condition when sprayed it is impossible for any tallow to gather in lumps on the yarn. The amount of air used and the amount of tallow s rayed upon the yarn-may be regulated y the valves 45 and the oil may be regulated by the valves 34 and 36 so that any amount of tallow may be applied to the yarn as required. It is to be noted that the brush 11 combs the yarn and is disposed approximately six inches beyond the point Where the tallow or other lubricant is applied, while the brushes 10, one on each side of the yarn, lay the fiber of the yarn. By applying the tallow to the yarn while it is very hot, the tallow is caused to penetrate the yarn at once. My machine renovates the yarn after it has gone through the sizing bath in the slasher and puts the yarn in first-class condition for future operations.

I have heretofore stated that in the ordinary practice tallow is mixed with the siz-- .yarn immediately after it leaves said slasher. This effects a saving of from six to eight pounds of tallow per week per slasher and makes the yarn stronger, causing the fiber to lay better,'causing less lint in the weave room, and enabling the Weavers torun more looms thanat present. Furthermore, this is healthier to the employes of the weaving department. With my system the tallow, as before stated, is sprayed on the yarn after it leaves the drying drum. Thus the yarn gets a greater percentage of the tallow as it is approximately 40' from the vat to the point where the tallow will be applied by my sprayers, eliminating drying the yarn over the hot dryingdrum after the tallow has been applied. If the tallow was applied before the yarn passes over the dry ing drum it loses a certain percentage of its strength in its passage over the hot drum. This loss is stopped by putting the tallow on after it leaves the drying drum, while at the same time the spraying process provides for a more even distribution of the tallow without, however, applying the tallow in such form that it is liable to dry upon the yarn in the form of lumps which are not easily acted upon by the brushes.

I have illustrated my invention somewhat diagrammatically, as it is obvious that the brushes might be applied in other situations on the slasher and that the brushes may be driven by other driving means than that shown. Furthermore, it is obvious that the pipelines running from the sprayers and conveying the air and oil may be arranged according to a different system and that the air tank and air compressor and the oil I 1. The combination with a slasher having drying drums, of rapidly revolving brushes disposed on opposite sides of the yarn passing from said drum, and means disposed in advance of said brushes and between the brush and the drum for spraying lubricant in a heated and finely divided condition against the yarn.

2. The combination with a slasher having a drying drum, of means for treatin the rum comprising a pair of brushes disposed on each side of the path of travel of the yarn, the bristles of both brushes extending across the path of travel of the yarn, and means for spraying oil in a finely divided condition betweenthe drum and the brushes.

advance of the brushes and between the brushes and the drum and connected to a source of oil, a series of compressed aircarrying pipes connected to the sprayers and to the source of compressed air, valves for cutting off or permitting the flow of oil and the flow of compressed air, and means for controlling said valves and controlling said brushes from the controlling mechanism of the drum.

4. The combination with a slasher having a drying drum, a sizing tank and means for causing yarn to travel through the sizing tank and over the drying drum, and mechanism for starting and stopping the drying drum and. attendant mechanism, of an oil supply pipe disposed adjacent the path of travel of the yarn after the arm has passed the drum, oil pipes extending therefrom, compressed air nozzles disposed adjacent the ends of the oil pipes and directed toward the yarn, means connected to the oil supply pipe for heating the oil, a valve controlling the passage of oil from said heating means to signature.

LEWIS L. EVANS. 

